Givinostat: uses, dosing, side effects & brands

The following clinically significant adverse reactions are described below and elsewhere in the labeling: Hematological Changes [see Warnings and Precautions (5.1) ] Increased Triglycerides [see Warnings and Precautions (5.2) ] Gastrointestinal Disturbances [see Warnings and Precautions (5.3) ] QTc Prolongation [see Warnings and Precautions (5.4) ] Most common adverse reactions (≥10% in DUVYZAT-treated patients) are diarrhea, abdominal pain, thrombocytopenia, nausea/vomiting, hypertriglyceridemia, and pyrexia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact ITF Therapeutics, LLC. at 1-833-582-4312 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. In controlled and uncontrolled trials in patients with confirmed DMD, 222 male patients aged 6 years and older were treated with DUVYZAT, including 210 patients treated for ≥ 6 months, 187 patients for ≥ 12 months, and 105 patients for ≥ 24 months. The safety profile of DUVYZAT is based on a double-blind, placebo-controlled, 18-month study in a total of 179 ambulant DMD patients aged 6 years or older on concomitant steroid treatment…

None. None. ( 4 )

Closely monitor when DUVYZAT is used in combination with an oral CYP3A4 sensitive substrate or a sensitive substrate of the OCT2 transporter, for which a small change in substrate plasma concentration may lead to serious toxicities. ( 7.1 ) Avoid concomitant use with other drugs that prolong the QTc interval; monitor ECG if concomitant use cannot be avoided. ( 7.2 ) 7.1 Effect of DUVYZAT on Other Drugs CYP3A4 Sensitive Substrates Givinostat is a weak intestinal CYP3A4 inhibitor [see Clinical Pharmacology (12.3) ] . Closely monitor when DUVYZAT is used in combination with orally administered CYP3A4 sensitive substrates for which a small change in substrate plasma concentration may lead to serious toxicities. OCT2 Sensitive Substrates Givinostat is a weak inhibitor of the renal uptake transporter OCT2 [see Clinical Pharmacology (12.3) ] . Closely monitor when DUVYZAT is used in combination with drugs known as a sensitive substrate of the OCT2 transporter for which a small change in substrate plasma concentration may lead to serious toxicities. 7.2 Effect of Other Drugs on DUVYZAT Drugs that Prolong the QTc Interval Avoid concomitant use of DUVYZAT with other product(s) with a known potential to prolong the QTc interval. If concomitant use cannot be avoided, obtain ECGs when initiating, during concomitant use, and as clinically indicated [see Warnings and Precautions (5.4) ] . Withhold DUVYZAT if the QTc interval is > 500 ms or the change from baseline is > 60 ms [see Dosage and Administration (2.1) ] . DUVYZAT causes QTc interval prolongation [see Clinical Pharmacology (12.2) ] . Concomitant use of DUVYZAT with other products that prolong the QTc interval may result in a greater increase in the QTc interval and adverse reactions associated with QTc interval prolongation, including Torsade de pointes, other serious arrythmias, and sudden death [see Warnings and Precautions (5.4) ] .